|
The eddy currents are a big enough deal that they use special alloys for the laminations. the silicon in the steel makes it less conductive and so smaller eddy currents. Then you make the "lams" isolated from each other to further reduce conductivity.
In really cheep power transformers, like microwave ovens, you find that keeping the "lams" from rattling was of more importance then eddy currents, they weld the lams together. So you see, it ia mostly a mattter of priorities.
|